通过

CIImage.CreateByPremultiplyingAlpha 方法

  • 参考

定义

命名空间:
CoreImage
程序集:
Xamarin.iOS.dll
程序集:
Xamarin.Mac.dll

创建一个新图像，该图像的 RGB 值是通过将此图像的 RGB 值乘以此图像的 alpha 值来创建的。

[Foundation.Export("imageByPremultiplyingAlpha")]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 10, 0, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.MacOSX, 10, 12, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.TvOS, 10, 0, ObjCRuntime.PlatformArchitecture.All, null)]
public virtual CoreImage.CIImage CreateByPremultiplyingAlpha ();
abstract member CreateByPremultiplyingAlpha : unit -> CoreImage.CIImage
override this.CreateByPremultiplyingAlpha : unit -> CoreImage.CIImage

返回

CIImage
属性
ExportAttribute IntroducedAttribute

适用于